It just occured to me, that if I was ever involved in a defensive shooting and I wound up in a holding cell I have no idea who to call.
SS Steve, I work in a jail and and I will tell you what we do. Keep in mind that the following is what we do at my agency. Other places might have different policies.
I don't know if it's like in the movies where they give you just one phone call, but what if you tried to call a friend and no one answered? What next?
Whether an arrestee gets a phone call depends on a lot of variables. Most important is the charge. If it is a non-drug related misdemeanor, I will allow a phone call or I will call for the arrestee so that someone can come down and pay a bond. Our cells have a phone in them but they only make collect calls which most cell phones can't receive. These phones don't get much use.
For drug arrests and serious crimes (felonies) there will be no bond or calls until, at the minimum, a detective reviews the case. Sometimes a detective will want to speak with the arrestee and at that time the person is Mirandized and can call for a lawyer if they wish. For these types of arrests, after arraignment before the judge, a phone call is almost always allowed (usually because there is a bond.)
As to what happens if no one answers, I try my best to get folks out of the jail if they have a bond. We only have so much room and there is no need to keep people that have a bond, that is what the money is for. After booking, before I place the arrestee in the cell, if I'm not busy, I let them make a call. If the person doesn't answer I tell them leave a message. I will sometimes allow another call if I am not busy. After they are in the cell If they get a bond or they have had no response for a while, I will get some names and numbers and make a call for them.
Keep in mind that I don't have to do any of this. An arrestee determines how they will be treated. Cooperation will gain cooperation. I'm not there to punish anyone, but if an arrestee is a jerk, I am far less likely to do them any favors.
It got me thinking about shopping for lawyers now, before any incident, so when I do have to make that call, I can just pull the number out of my phone or wallet.
I keep the number of a Michigan gun rights lawyer in my phone for just such a situation.